HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
REGISTER   |   LOGIN   |   HELP
Blogs
Captain Hybrid

Slideshow: Hydrogen-Powered Hyundai to Hit Showrooms in February

NO RATINGS
View Comments: Newest First|Oldest First|Threaded View
Page 1/3  >  >>
William K.
User Rank
Platinum
Probably not!
William K.   1/17/2014 10:32:00 AM
NO RATINGS
While hydrogen is certainly a low emissions fuel, and capable of zero carbon emissions, it is a logisticly challenging choice. It can be delivered as either a cryogenic liquid, which requires special hyandling and constant refrigeration, unless a signifigant boil-off loss penalty is acceptable, or a high pressure gas with a fairly small molecular size, which is also a challenge to handle and deliver. High pressure plumbing is a lot of work.

Then there is that real concern about the large amount of energy needed to deliver usable hydrogen in any form. Free hydrogen is only found mixed with natruyral gas right from the wellhead. Separating it takes some effort, and is not a trivial task. Most hydrogen is obtained by separation from other elements, which requires a fair amount of energy. If the vehicle could separate the hydrogen from something else onboard the vehicl it would have the potential to be quite useful. That has been done a few years back, and I believe that the conclusion at that time was that it simply was not worth the effort. 

Of course it is possible that Hyundai has found a solution to the challenge, but it remains to be seen. If they have, it could be a real game changer.

Debera Harward
User Rank
Silver
Re: Self-Discharge
Debera Harward   1/17/2014 3:07:58 AM
NO RATINGS
But one disadvantage is that it will take large amount of energy to liquify the feul, the cost incurred in preparing these cells are high, incase of damage the cost for repair is high.

Debera Harward
User Rank
Silver
Re: Self-Discharge
Debera Harward   1/17/2014 2:53:04 AM
NO RATINGS
Hydrogen cars are definitely less pollutant because they emit only water vapor because when burned it doesnot produce carbondioxide when burned . Hydrogen has the potential to run engine more efficiently .

Charles Murray
User Rank
Blogger
Re: Self-Discharge
Charles Murray   1/6/2014 6:01:27 PM
NO RATINGS
Yes, tekochip, energy storage is the critical issue. It's tough to find a fuel that can come close to the energy capabilitioes of gasoline. And because we've all been spoiled by the luxuries of oil, all newcomers will inevitably be compared to it.

William K.
User Rank
Platinum
No, I don't think so!
William K.   12/18/2013 3:26:34 PM
NO RATINGS
While the economics of scale will possibly reduce the price of a hydrogen fuel cell powered car, it is not likely that they will have a whole lot of effect on the complexity. High pressure is still a challenge to deal with.

But the concern about explosions and such is mostly unfounded. Hydrogen is much lighter than air, and so it tends to rise, which automatically removes much of the hazard from a leak, if the vehicle is outside. Storing the car in an enclosed garage would be a poor idea though, unless a venting arrangement would be added. But hydrogen is much safer than either gasoline or liquid propane, both are heavier than air and so would pool near the ground. And hydrogen has an advantage of being nontoxic, so that hazard does not exist. It is economics and logistics that will doom the hydrogen-fuel cell vehicle, nothing else.

patb2009
User Rank
Gold
Re: Self-Discharge
patb2009   12/18/2013 11:45:22 AM
NO RATINGS
10,000 PSI?

 

woo hoo and people moaned when a tesla burned after impact.

 

a 3000 PSI T or K bottle when damaged does amazing things,

this will be worse.  way worse.

 

 

Debera Harward
User Rank
Silver
Re: Self-Discharge
Debera Harward   12/17/2013 2:37:29 AM
NO RATINGS
However there are certain drawbacks of the hydrogen powered cars like cost of feul cells is too high , in case of any damage repair or replacement cost is too much , storage issues hydrogen being inflammable can result in huge explosion of car, I have heard that speed and pickup of hydrogen car is not that good .

I guess all these drawbacks will overcome in the near future because as a technology emerges it has many drawbacks which reduces as it gets matured.

Debera Harward
User Rank
Silver
Re: fuel, that's the rub
Debera Harward   12/17/2013 2:30:31 AM
NO RATINGS
Thanks Charles for the post , Its very great to hear about hundai hydrogen powered car there are many advantages of hydrogen vehicles first of all is the availibility of hydrogen ,No harmfull emission , Enviornmentally friendly , no enviornmental pollution and many more .

William K.
User Rank
Platinum
Re: Self-Discharge
William K.   12/16/2013 8:57:14 PM
NO RATINGS
10,000PSI is ahigh pressure, and while all of the stuff to work at that pressure is available, it still demands more expertise than lower pressures. Besides that, it costs more than the lower pressure stuff, and the choices for parts are fewer. So the cars will be an interesting service challenge and an even more interesting refilling challenge.

And just today I read that HONDA is also working on a hydrogen powered fuel cell car. IT must be true that they are hoping to meet some EPA mandate. REally, the EPA makes rules and nobody can argue, it must be fun to not hve to answer to anybody for your actions.

High pressure gas is still safer than high power batteries, but it may weigh a lot more.

And the cost of quantities of pure hydrogen  at high pressures is still a big problem.

Charles Murray
User Rank
Blogger
Re: Self-Discharge
Charles Murray   12/16/2013 8:31:28 PM
NO RATINGS
The pressure that most automakers are designing for is 70 MPa, or about 10,000 psi, William K.

Page 1/3  >  >>
Partner Zone
More Blogs from Captain Hybrid
A pure electric car with a lithium-ion battery can lose as much as 57% of its range when the temperature dips and 33% when the mercury rises, a new AAA study says.
Volkswagen AG is developing a lithium-air battery that could triple the range of its electric cars, but industry experts believe it could be a long time before that chemistry is ready for production vehicles.
After reading all the recent news reports about Tesla Motors’ proposed “Gigafactory,” it’s hard not to wonder about the future of battery-electric cars, and how low their costs can really go.
California’s plan to mandate an electric vehicle market isn’t the first such undertaking and certainly won’t be the last. But as the Golden State ratchets up for its next big step toward zero-emission vehicle status in 2018, it might be wise to consider a bit of history.
Tesla Motors plans to build a huge battery factory in hopes of making electric cars affordable for the general public.
Design News Webinar Series
3/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
2/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
12/18/2013 Available On Demand
11/20/2013 Available On Demand
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Apr 21 - 25, Creating & Testing Your First RTOS Application Using MQX
SEMESTERS: 1  |  2  |  3  |  4  |  5


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: April 29 - Day 1
Sponsored by maxon precision motors
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service